Publisher
RasterloomPlease Note
This entry is from Friday September 11, 2026. The price of the asset may have changed since then.Please visit our homepage for recent offers and sales. Official and private Unity Asset Store™ sales usually last about 14 days.
Overview
200 alpha masks at 512 x 512: grunge, dirt, scratches, cracks, rust, stains, leaks, splatter, edge wear and impact damage.
THESE ARE MASKS, NOT TEXTURES
The greyscale value is the alpha. White means affect this pixel fully, black means leave it alone. You bring the colour and the material; these decide where it lands. Feed them into a decal projector, a detail layer, a blend mask, a vertex-paint splat, a UI overlay, or the alpha input of any shader that takes one.
THE IMPORT SETTINGS ARE THE POINT
Every mask ships as Texture Type Default with sRGB off, Alpha Source set to From Grayscale, Alpha Is Transparency on, Compression None - and with the wrap and mip settings that match what each map is for.
Two of those go wrong constantly. sRGB on a mask applies a colour curve to something that is not a colour, so the midtones drift and the coverage you tuned is not the coverage you get. And a decal with Wrap set to Repeat smears its edge pixels around the projector volume, which looks like a stretched texture rather than a wrong setting, so it takes a while to find.
TILING VERSUS DECAL
156 of the maps are seamless: they repeat in both directions with no visible seam, and ship with Wrap Repeat and mip maps on, because they are meant to be seen at distance. The other 44 are one-shot decals - an impact, a leak, a scorch, a frame of edge wear - and ship clamped and unmipped so their edges stay exactly where you put them. The documentation says which is which, map by map, with its measured coverage.
EIGHT FAMILIES
Grunge and dirt (34), Scratches and abrasion (28), Cracks and fractures (24), Rust and corrosion (22), Stains, leaks and drips (24), Splatter and spray (24), Edge wear and frames (22), Impact and damage (22).
WHAT YOU GET
- 200 masks, 512 x 512, 8-bit greyscale
- A contact sheet per family, so you can pick one by eye instead of opening two hundred files
- A showcase scene that pans across those sheets
- Documentation with every map, its family, its coverage and whether it tiles
BUILT WITH CODE, NOT PHOTOGRAPHED
Every mask is generated: noise fields, fracture systems, erosion and drip simulations, written for this pack. Nothing is photographed, traced or image-generated, which is also why the tiling maps tile exactly rather than nearly.
LICENCE
Royalty-free, unlimited commercial and personal projects, no attribution required. You may not resell or redistribute the mask files themselves as an asset pack.